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<a href="a00488.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// class template regex -*- C++ -*-</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright (C) 2013-2018 Free Software Foundation, Inc.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// software; you can redistribute it and/or modify it under the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// terms of the GNU General Public License as published by the</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// any later version.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// This library is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// GNU General Public License for more details.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// 3.1, as published by the Free Software Foundation.</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// You should have received a copy of the GNU General Public License and</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// <http://www.gnu.org/licenses/>.</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/**</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * @file bits/regex_executor.h</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * This is an internal header file, included by other library headers.</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * Do not attempt to use it directly. @headername{regex}</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> */</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// FIXME convert comments to doxygen format.</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span><a class="code" href="a01541.html">std</a> _GLIBCXX_VISIBILITY(default)</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">namespace </span>__detail</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> {<span class="comment"></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> /**</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * @addtogroup regex-detail</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * @{</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> */</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"></span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> /**</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * @brief Takes a regex and an input string and does the matching.</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> *</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * The %_Executor class has two modes: DFS mode and BFS mode, controlled</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * by the template parameter %__dfs_mode.</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> */</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _BiIter, <span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _TraitsT,</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">bool</span> __dfs_mode></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">class </span>_Executor</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">using</span> __search_mode = integral_constant<bool, __dfs_mode>;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">using</span> __dfs = <a class="code" href="a01479.html#ga6a860513044e23d34e553ea986e83fa1">true_type</a>;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">using</span> __bfs = <a class="code" href="a01479.html#gaebe6729ab5488ecc76c762873d226857">false_type</a>;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">enum class</span> _Match_mode : unsigned char { _Exact, _Prefix };</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> iterator_traits<_BiIter>::value_type _CharT;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">typedef</span> basic_regex<_CharT, _TraitsT> _RegexT;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">typedef</span> <a class="code" href="a07923.html">std::vector<sub_match<_BiIter></a>, _Alloc> _ResultsVec;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">typedef</span> <a class="code" href="a01567.html#aaa717c7c94d1075dfb06f79feb4ca11c">regex_constants::match_flag_type</a> _FlagT;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _TraitsT::char_class_type _ClassT;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">typedef</span> _NFA<_TraitsT> _NFAT;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  _Executor(_BiIter __begin,</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  _BiIter __end,</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  _ResultsVec& __results,</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">const</span> _RegexT& __re,</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  _FlagT __flags)</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  : _M_begin(__begin),</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  _M_end(__end),</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  _M_re(__re),</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  _M_nfa(*__re._M_automaton),</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  _M_results(__results),</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  _M_rep_count(_M_nfa.size()),</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  _M_states(_M_nfa._M_start(), _M_nfa.size()),</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  _M_flags((__flags & regex_constants::<a class="code" href="a01567.html#ad48b9cdb07f0c311ec5ffeb093c209d5">match_prev_avail</a>)</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  ? (__flags</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  & ~regex_constants::<a class="code" href="a01567.html#af0a051640e6d5b7be783ecef1bd6057c">match_not_bol</a></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  & ~regex_constants::<a class="code" href="a01567.html#ae61a11ae1d6998a161bdbb50c63dd0e2">match_not_bow</a>)</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  : __flags)</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  { }</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// Set matched when string exactly matches the pattern.</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  _M_match()</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  {</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  _M_current = _M_begin;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">return</span> _M_main(_Match_mode::_Exact);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// Set matched when some prefix of the string matches the pattern.</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  _M_search_from_first()</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  {</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  _M_current = _M_begin;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> _M_main(_Match_mode::_Prefix);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  _M_search();</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  _M_rep_once_more(_Match_mode __match_mode, _StateIdT);</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  _M_handle_repeat(_Match_mode, _StateIdT);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  _M_handle_subexpr_begin(_Match_mode, _StateIdT);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  _M_handle_subexpr_end(_Match_mode, _StateIdT);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  _M_handle_line_begin_assertion(_Match_mode, _StateIdT);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  _M_handle_line_end_assertion(_Match_mode, _StateIdT);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  _M_handle_word_boundary(_Match_mode, _StateIdT);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  _M_handle_subexpr_lookahead(_Match_mode, _StateIdT);</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  _M_handle_match(_Match_mode, _StateIdT);</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  _M_handle_backref(_Match_mode, _StateIdT);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  _M_handle_accept(_Match_mode, _StateIdT);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  _M_handle_alternative(_Match_mode, _StateIdT);</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  _M_dfs(_Match_mode __match_mode, _StateIdT __start);</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  _M_main(_Match_mode __match_mode)</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  { <span class="keywordflow">return</span> _M_main_dispatch(__match_mode, __search_mode{}); }</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  _M_main_dispatch(_Match_mode __match_mode, __dfs);</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  _M_main_dispatch(_Match_mode __match_mode, __bfs);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  _M_is_word(_CharT __ch)<span class="keyword"> const</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">static</span> <span class="keyword">const</span> _CharT __s[2] = { <span class="charliteral">'w'</span> };</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">return</span> _M_re._M_automaton->_M_traits.isctype</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  (__ch, _M_re._M_automaton->_M_traits.lookup_classname(__s, __s+1));</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  _M_at_begin()<span class="keyword"> const</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> _M_current == _M_begin</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  && !(_M_flags & (<a class="code" href="a01567.html#af0a051640e6d5b7be783ecef1bd6057c">regex_constants::match_not_bol</a></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  | <a class="code" href="a01567.html#ad48b9cdb07f0c311ec5ffeb093c209d5">regex_constants::match_prev_avail</a>));</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  _M_at_end()<span class="keyword"> const</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> _M_current == _M_end</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  && !(_M_flags & <a class="code" href="a01567.html#a2fa4bcec54ff420f477a7bbfe6f9925b">regex_constants::match_not_eol</a>);</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  _M_word_boundary() <span class="keyword">const</span>;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  _M_lookahead(_StateIdT __next);</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="comment">// Holds additional information used in BFS-mode.</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _SearchMode, <span class="keyword">typename</span> _ResultsVec></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">struct </span>_State_info;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _ResultsVec></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">struct </span>_State_info<__bfs, _ResultsVec></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  {</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">explicit</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  _State_info(_StateIdT __start, <span class="keywordtype">size_t</span> __n)</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  : _M_visited_states(new bool[__n]()), _M_start(__start)</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  { }</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordtype">bool</span> _M_visited(_StateIdT __i)</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  {</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">if</span> (_M_visited_states[__i])</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  _M_visited_states[__i] = <span class="keyword">true</span>;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">void</span> _M_queue(_StateIdT __i, <span class="keyword">const</span> _ResultsVec& __res)</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  { _M_match_queue.emplace_back(__i, __res); }</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// Dummy implementations for BFS mode.</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  _BiIter* _M_get_sol_pos() { <span class="keywordflow">return</span> <span class="keyword">nullptr</span>; }</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">// Saves states that need to be considered for the next character.</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  vector<pair<_StateIdT, _ResultsVec>> _M_match_queue;</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="comment">// Indicates which states are already visited.</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  unique_ptr<bool[]> _M_visited_states;</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="comment">// To record current solution.</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  _StateIdT _M_start;</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  };</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _ResultsVec></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keyword">struct </span>_State_info<__dfs, _ResultsVec></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  {</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">explicit</span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  _State_info(_StateIdT __start, <span class="keywordtype">size_t</span>) : _M_start(__start)</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  { }</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="comment">// Dummy implementations for DFS mode.</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordtype">bool</span> _M_visited(_StateIdT)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="keyword">false</span>; }</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordtype">void</span> _M_queue(_StateIdT, <span class="keyword">const</span> _ResultsVec&) { }</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  _BiIter* _M_get_sol_pos() { <span class="keywordflow">return</span> &_M_sol_pos; }</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="comment">// To record current solution.</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  _StateIdT _M_start;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  _BiIter _M_sol_pos;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  };</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  _ResultsVec _M_cur_results;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  _BiIter _M_current;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  _BiIter _M_begin;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keyword">const</span> _BiIter _M_end;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keyword">const</span> _RegexT& _M_re;</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">const</span> _NFAT& _M_nfa;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  _ResultsVec& _M_results;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  vector<pair<_BiIter, int>> _M_rep_count;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  _State_info<__search_mode, _ResultsVec> _M_states;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  _FlagT _M_flags;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="comment">// Do we have a solution so far?</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordtype">bool</span> _M_has_sol;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  };</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"></span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> //@} regex-detail</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment"></span>} <span class="comment">// namespace __detail</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> } <span class="comment">// namespace std</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="preprocessor">#include <<a class="code" href="a00491.html">bits/regex_executor.tcc</a>></span></div><div class="ttc" id="a07923_html"><div class="ttname"><a href="a07923.html">std::vector</a></div><div class="ttdoc">A standard container which offers fixed time access to individual elements in any order.</div><div class="ttdef"><b>Definition:</b> <a href="a00599_source.html#l00339">stl_vector.h:339</a></div></div>
<div class="ttc" id="a01479_html_ga6a860513044e23d34e553ea986e83fa1"><div class="ttname"><a href="a01479.html#ga6a860513044e23d34e553ea986e83fa1">std::true_type</a></div><div class="ttdeci">integral_constant< bool, true > true_type</div><div class="ttdoc">The type used as a compile-time boolean with true value.</div><div class="ttdef"><b>Definition:</b> <a href="a00167_source.html#l00075">type_traits:75</a></div></div>
<div class="ttc" id="a00491_html"><div class="ttname"><a href="a00491.html">regex_executor.tcc</a></div></div>
<div class="ttc" id="a01567_html_af0a051640e6d5b7be783ecef1bd6057c"><div class="ttname"><a href="a01567.html#af0a051640e6d5b7be783ecef1bd6057c">std::regex_constants::match_not_bol</a></div><div class="ttdeci">_GLIBCXX17_INLINE constexpr match_flag_type match_not_bol</div><div class="ttdef"><b>Definition:</b> <a href="a00482_source.html#l00268">regex_constants.h:268</a></div></div>
<div class="ttc" id="a01567_html_aaa717c7c94d1075dfb06f79feb4ca11c"><div class="ttname"><a href="a01567.html#aaa717c7c94d1075dfb06f79feb4ca11c">std::regex_constants::match_flag_type</a></div><div class="ttdeci">match_flag_type</div><div class="ttdoc">This is a bitmask type indicating regex matching rules.</div><div class="ttdef"><b>Definition:</b> <a href="a00482_source.html#l00255">regex_constants.h:255</a></div></div>
<div class="ttc" id="a01541_html"><div class="ttname"><a href="a01541.html">std</a></div><div class="ttdoc">ISO C++ entities toplevel namespace is std.</div></div>
<div class="ttc" id="a01567_html_ae61a11ae1d6998a161bdbb50c63dd0e2"><div class="ttname"><a href="a01567.html#ae61a11ae1d6998a161bdbb50c63dd0e2">std::regex_constants::match_not_bow</a></div><div class="ttdeci">_GLIBCXX17_INLINE constexpr match_flag_type match_not_bow</div><div class="ttdef"><b>Definition:</b> <a href="a00482_source.html#l00283">regex_constants.h:283</a></div></div>
<div class="ttc" id="a01479_html_gaebe6729ab5488ecc76c762873d226857"><div class="ttname"><a href="a01479.html#gaebe6729ab5488ecc76c762873d226857">std::false_type</a></div><div class="ttdeci">integral_constant< bool, false > false_type</div><div class="ttdoc">The type used as a compile-time boolean with false value.</div><div class="ttdef"><b>Definition:</b> <a href="a00167_source.html#l00078">type_traits:78</a></div></div>
<div class="ttc" id="a01567_html_ad48b9cdb07f0c311ec5ffeb093c209d5"><div class="ttname"><a href="a01567.html#ad48b9cdb07f0c311ec5ffeb093c209d5">std::regex_constants::match_prev_avail</a></div><div class="ttdeci">_GLIBCXX17_INLINE constexpr match_flag_type match_prev_avail</div><div class="ttdef"><b>Definition:</b> <a href="a00482_source.html#l00317">regex_constants.h:317</a></div></div>
<div class="ttc" id="a01567_html_a2fa4bcec54ff420f477a7bbfe6f9925b"><div class="ttname"><a href="a01567.html#a2fa4bcec54ff420f477a7bbfe6f9925b">std::regex_constants::match_not_eol</a></div><div class="ttdeci">_GLIBCXX17_INLINE constexpr match_flag_type match_not_eol</div><div class="ttdef"><b>Definition:</b> <a href="a00482_source.html#l00276">regex_constants.h:276</a></div></div>
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